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EV0045

EV0045首页预览图
型号: EV0045
PDF文件:
  • EV0045 PDF文件
  • EV0045 PDF在线浏览
功能描述: 5W - 30W Class D Mono Bridged Audio Amplifier
PDF文件大小: 274.1 Kbytes
PDF页数: 共9页
制造商: MPS[Monolithic Power Systems]
制造商LOGO: MPS[Monolithic Power Systems] LOGO
制造商网址: http://www.monolithicpower.com
捡单宝EV0045
PDF页面索引
120%
MP7731
5W - 30W Class D Mono
Bridged Audio Amplifier
MP7731 Rev. 1.8 www.MonolithicPower.com 1
9/25/2006 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP7731 is a mono, 5W - 30W Class D Audio
Amplifier. It is one of MPS’ second generation of
fully integrated audio amplifiers which dramatically
reduces solution size by integrating the following:
Start Up / Shut Down Pop Elimination
Short Circuit Protection Circuits
180m Power MOSFETs
Mute / Standby Mode
The MP7731 utilizes a full bridge output structure
capable of delivering 5W - 30W into 4
speakers. As in all other MPS Class D Audio
Amplifiers, this device exhibits the high fidelity
of a Class AB amplifier with an efficiency of
90%. The circuit is based on the MPS’ proprietary
variable frequency topology Analog Adaptive
Modulation (AAM, Patent No. 6,420,930; other
patents pending) that delivers excellent PSRR,
fast response time and operates on a single
power supply.
EVALUATION BOARD REFERENCE
Board Number Dimensions
EV0045 4.8cm x 3.0cm x 1.5cm
FEATURES
30W into 4 with V
DD
= 16.5V
90% Efficiency at 5W
Amplifies Full Audio Range with Low THD+N
Typical = 0.1%
9.5V to 18V Supply Voltage Operation
Full Bridge Output Drive
4 Integrated 180m Switches
Turn On / Turn Off Click and Pop Suppression
Integrated Short Circuit Protection
Integrated Thermal shutdown
Mute / Standby Mode
APPLICATIONS
Flat Panel LCD and PDP Displays
Notebook and Multimedia Computers
Televisions
Home Stereos
DVD and VCD Players
Game Devices and Systems
Monitors
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks
of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
MP7731
NC
PIN1
NIN1
AGND1
NC
EN1
NIN2
PIN2
AGND2
EN2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
PGND1
SW1
VDD1
BS1
NC
PGND2
SW2
VDD2
BS2
NC
AUDIO IN+
+
V
CC
V
CC
-
+
V
CC
V
CC
V
CC
EN
AUDIO IN-
50
20
10
5
2
1
0.5
0.2
0.1
0.05
0.02
0.01
THD+N (%)
100M
10 50
1
OUTPUT POWER (W)
THD+N vs Output Power
f=1kHz
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